docs: def verify(self):
          """
          Returns True if the file contents match with the CRC32 attribute
  
          note: reset
          """
  
          # remember file pointer
          pos = self.tell()
          self.seek(0)
  
          checksum = 0
          for chunk in iter(lambda: self.read(1024), b''):
              checksum = crc32(chunk, checksum)
  
          # restore file pointer
          self.seek(pos)
  
          return self.crc32 == checksum & 0xffffffff